org.openrewrite.yaml.DeleteProperty Maven / Gradle / Ivy
Show all versions of rewrite-yaml Show documentation
/*
* Copyright 2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openrewrite.yaml;
import lombok.EqualsAndHashCode;
import lombok.Value;
import lombok.With;
import org.jspecify.annotations.Nullable;
import org.openrewrite.*;
import org.openrewrite.internal.ListUtils;
import org.openrewrite.internal.NameCaseConvention;
import org.openrewrite.marker.Marker;
import org.openrewrite.yaml.tree.Yaml;
import java.util.*;
import java.util.stream.Collectors;
import static java.util.Spliterators.spliteratorUnknownSize;
import static java.util.stream.StreamSupport.stream;
import static org.openrewrite.Tree.randomId;
@Value
@EqualsAndHashCode(callSuper = false)
public class DeleteProperty extends Recipe {
@Option(displayName = "Property key",
description = "The key to be deleted.",
example = "management.metrics.binders.files.enabled")
String propertyKey;
@Deprecated
@Option(displayName = "Coalesce",
description = "(Deprecated: in a future version, this recipe will always use the `false` behavior)" +
" Simplify nested map hierarchies into their simplest dot separated property form.",
required = false)
@Nullable
Boolean coalesce;
@Option(displayName = "Use relaxed binding",
description = "Whether to match the `propertyKey` using [relaxed binding](https://docs.spring.io/spring-boot/docs/2.5.6/reference/html/features.html#features.external-config.typesafe-configuration-properties.relaxed-binding) " +
"rules. Defaults to `true`. If you want to use exact matching in your search, set this to `false`.",
required = false)
@Nullable
Boolean relaxedBinding;
@Option(displayName = "File pattern",
description = "A glob expression representing a file path to search for (relative to the project root). Blank/null matches all.",
required = false,
example = ".github/workflows/*.yml")
@Nullable
String filePattern;
@Override
public String getDisplayName() {
return "Delete property";
}
@Override
public String getDescription() {
return "Delete a YAML property. Nested YAML mappings are interpreted as dot separated property names, i.e. " +
" as Spring Boot interprets application.yml files like `a.b.c.d` or `a.b.c:d`.";
}
@Override
public TreeVisitor getVisitor() {
return Preconditions.check(new FindSourceFiles(filePattern), new YamlIsoVisitor() {
@Override
public Yaml.Documents visitDocuments(Yaml.Documents documents, ExecutionContext ctx) {
// TODO: Update DeleteProperty to support documents having Anchor / Alias Pairs
if (documents != new ReplaceAliasWithAnchorValueVisitor().visit(documents, ctx)) {
return documents;
}
return super.visitDocuments(documents, ctx);
}
@Override
public Yaml.Mapping.Entry visitMappingEntry(Yaml.Mapping.Entry entry, ExecutionContext ctx) {
Yaml.Mapping.Entry e = super.visitMappingEntry(entry, ctx);
Deque propertyEntries = getCursor().getPathAsStream()
.filter(Yaml.Mapping.Entry.class::isInstance)
.map(Yaml.Mapping.Entry.class::cast)
.collect(Collectors.toCollection(ArrayDeque::new));
String prop = stream(spliteratorUnknownSize(propertyEntries.descendingIterator(), 0), false)
.map(e2 -> e2.getKey().getValue())
.collect(Collectors.joining("."));
if (!Boolean.FALSE.equals(relaxedBinding) ? NameCaseConvention.equalsRelaxedBinding(prop, propertyKey) : prop.equals(propertyKey)) {
doAfterVisit(new DeletePropertyVisitor<>(entry));
if (Boolean.TRUE.equals(coalesce)) {
maybeCoalesceProperties();
}
}
return e;
}
});
}
private static class DeletePropertyVisitor extends YamlVisitor
{
private final Yaml.Mapping.Entry scope;
private DeletePropertyVisitor(Yaml.Mapping.Entry scope) {
this.scope = scope;
}
@Override
public Yaml visitSequence(Yaml.Sequence sequence, P p) {
sequence = (Yaml.Sequence) super.visitSequence(sequence, p);
List entries = sequence.getEntries();
if (entries.isEmpty()) {
return sequence;
}
entries = ListUtils.map(entries, entry -> ToBeRemoved.hasMarker(entry) ? null : entry);
return entries.isEmpty() ? ToBeRemoved.withMarker(sequence) : sequence.withEntries(entries);
}
@Override
public Yaml visitSequenceEntry(Yaml.Sequence.Entry entry, P p) {
entry = (Yaml.Sequence.Entry) super.visitSequenceEntry(entry, p);
if (entry.getBlock() instanceof Yaml.Mapping) {
Yaml.Mapping m = (Yaml.Mapping) entry.getBlock();
if (ToBeRemoved.hasMarker(m)) {
return ToBeRemoved.withMarker(entry);
}
}
return entry;
}
@Override
public Yaml visitMapping(Yaml.Mapping mapping, P p) {
Yaml.Mapping m = (Yaml.Mapping) super.visitMapping(mapping, p);
boolean changed = false;
List entries = new ArrayList<>();
String deletedPrefix = null;
int count = 0;
for (Yaml.Mapping.Entry entry : m.getEntries()) {
if (ToBeRemoved.hasMarker(entry.getValue())) {
changed = true;
continue;
}
if (entry == scope || (entry.getValue() instanceof Yaml.Mapping && ((Yaml.Mapping) entry.getValue()).getEntries().isEmpty())) {
deletedPrefix = entry.getPrefix();
changed = true;
} else {
if (deletedPrefix != null) {
if (count == 0 && containsOnlyWhitespace(entry.getPrefix())) {
// do this only if the entry will be the first element
entry = entry.withPrefix(deletedPrefix);
}
deletedPrefix = null;
}
entries.add(entry);
count++;
}
}
if (changed) {
m = m.withEntries(entries);
if (entries.isEmpty()) {
m = ToBeRemoved.withMarker(m);
}
if (getCursor().getParentOrThrow().getValue() instanceof Yaml.Document) {
Yaml.Document document = getCursor().getParentOrThrow().getValue();
if (!document.isExplicit()) {
m = m.withEntries(m.getEntries());
}
}
}
return m;
}
}
private static boolean containsOnlyWhitespace(@Nullable String str) {
if (str == null || str.isEmpty()) {
return false;
}
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (!Character.isWhitespace(c)) {
return false;
}
}
return true;
}
@Value
@With
private static class ToBeRemoved implements Marker {
UUID id;
static Y2 withMarker(Y2 y) {
return y.withMarkers(y.getMarkers().addIfAbsent(new ToBeRemoved(randomId())));
}
static boolean hasMarker(Yaml y) {
return y.getMarkers().findFirst(ToBeRemoved.class).isPresent();
}
}
}